[ https://issues.apache.org/jira/browse/ZOOKEEPER-131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mahadev konar updated ZOOKEEPER-131: ------------------------------------ Attachment: ZOOKEEPER-131.patch here is a patch that changes e.printstacktrace to log.err.... other than that the patch looks good. +1 > Old leader election can elect a dead leader over and over again > --------------------------------------------------------------- > > Key: ZOOKEEPER-131 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-131 > Project: Zookeeper > Issue Type: Bug > Components: leaderElection > Reporter: Benjamin Reed > Assignee: Benjamin Reed > Attachments: ZOOKEEPER-131.patch, ZOOKEEPER-131.patch, > ZOOKEEPER-131.patch > > > I think there is a race condition that is probably easy to get into with the > old leader election and a large number of servers: > 1) Leader dies > 2) Followers start looking for a new leader before all Followers have > abandoned the Leader > 3) The Followers looking for a new leader see votes of Followers still > following the (now dead) Leader and start voting for the dead Leader > 4) The dead Leader gets reelected. > For the old leader election a server should not vote for another server that > is not nominating himself. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.